KR101351239B1 - Manufacturing method and apparatus of trapezoidal aluminumalloy wire for overhead power transmission cable - Google Patents

Manufacturing method and apparatus of trapezoidal aluminumalloy wire for overhead power transmission cable Download PDF

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KR101351239B1
KR101351239B1 KR1020120129578A KR20120129578A KR101351239B1 KR 101351239 B1 KR101351239 B1 KR 101351239B1 KR 1020120129578 A KR1020120129578 A KR 1020120129578A KR 20120129578 A KR20120129578 A KR 20120129578A KR 101351239 B1 KR101351239 B1 KR 101351239B1
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aluminum alloy
trapezoidal
alloy wire
manufacturing
transmission line
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KR1020120129578A
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Korean (ko)
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김병걸
김종욱
이정훈
구재관
김상수
이영호
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(주)메탈링크
한국전기연구원
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/02Making uncoated products
    • B21C23/04Making uncoated products by direct extrusion
    • B21C23/14Making other products
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C29/00Cooling or heating work or parts of the extrusion press; Gas treatment of work
    • B21C29/003Cooling or heating of work
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C31/00Control devices, e.g. for regulating the pressing speed or temperature of metal; Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02Anodisation
    • C25D11/04Anodisation of aluminium or alloys based thereon

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Extrusion Of Metal (AREA)
  • Non-Insulated Conductors (AREA)

Abstract

The present invention relates to a method for manufacturing a trapezoid aluminum alloy wire for an overhead transmission line and a manufacturing device thereof and, more specifically, a method for manufacturing a trapezoid aluminum alloy wire for an overhead transmission line and a manufacturing device thereof, capable of increasing the transfer capacity of the overhead transmission line by manufacturing the trapezoid aluminum alloy wire having proper conductivity and tensile strength in order to increase the conductor-occupying ratio. [Reference numerals] (S110) Supplying step; (S120) Preheating step; (S130) Conform extrusion step; (S140) Dimension measurement step; (S150) Cooling step; (S160) Winding step

Description

가공송전선용 사다리꼴 알루미늄합금선 제조방법 및 그 제조장치{Manufacturing method and apparatus of trapezoidal aluminumalloy wire for overhead power transmission cable }Manufacturing method and apparatus for manufacturing trapezoidal aluminum alloy wire for overhead transmission line {Manufacturing method and apparatus of trapezoidal aluminumalloy wire for overhead power transmission cable}

본 발명은 가공송전선용 사다리꼴 알루미늄합금선 제조방법 및 그 제조장치에 관한 것으로, 더욱 상세하게는 소재인 알루미늄합금로드를 직선 형태로 공급하면서 예열한 후 사다리꼴형으로 컨폼(conform) 압출하여 적절한 도전율과 인장강도를 갖는 사다리꼴 알루미늄합금선을 제조함으로써 점적율을 높여 가공송전선의 송전용량을 증대시킬 수 있도록 한 가공송전선용 사다리꼴 알루미늄합금선 제조방법 및 그 제조장치에 관한 것이다.
The present invention relates to a method for manufacturing a trapezoidal aluminum alloy wire for overhead power transmission lines and a manufacturing apparatus thereof, and more particularly, to preheating while supplying the aluminum alloy rod material in a straight form, and then conformally extruded in a trapezoidal shape to provide an appropriate conductivity and The present invention relates to a method for manufacturing a trapezoidal aluminum alloy wire for a overhead transmission line and a device for manufacturing the trapezoidal aluminum alloy wire having a tensile strength, thereby increasing the capacity ratio of the overhead transmission line.

일반적으로 가공송전선은 전력수요의 증가 추세에 대처하기 위하여 송전선로를 신설하지 않고 기존의 송전선과의 교체를 통해서 기존의 송전선로와 송전탑을 그대로 이용하면서 단기간에 송전용량을 증대시키기 위한 송전선이다. In general, overhead transmission lines are transmission lines for increasing transmission capacity in a short period of time while using existing transmission lines and transmission towers without replacing transmission lines to cope with an increase in electric power demand.

이러한 가공송전선은 중심에 설치되어 전체적인 하중을 지지하는 강심부와 상기 강심부의 외주면에 설치되어 전력을 전달하는 도체부로 구성된다. The overhead transmission line is composed of a steel core portion installed at the center to support the overall load and a conductor portion installed on the outer circumferential surface of the steel core portion to transfer electric power.

따라서 가공송전선의 증대된 송전용량을 보장하기 위해서는 도체부의 도전율을 높이면서 도체부에서 발생하는 높은 온도에 의해 강심부가 아래로 처지는 이도 현상을 최소화하기 위한 활발한 연구가 필요하다. Therefore, in order to ensure the increased transmission capacity of the overhead transmission line, active research is required to minimize the degree of sagging of the steel core under the high temperature generated in the conductor while increasing the conductivity of the conductor.

상기와 같이 활발한 연구를 통하여 다양한 형태의 가공송전선이 개발되었는데, 이는 도체부의 도전율을 충분히 높이면서 온도에 따른 강심부의 이도 현상(처짐 현상)을 방지한 것이다. Through active research as described above, various types of overhead transmission lines have been developed, which sufficiently prevents the degree of sagging of the core part due to temperature while satisfactorily increasing the conductivity of the conductor part.

이러한 가공송전선은 ACSR(강심 알루미늄 연선), STACIR(초내열 인바심 알루미늄 합금 연선), ACFR(Aluminum Conductor Fiber Reinforced), ACCC(Aluminum Conductor Composite Core) 등이 있다. Such overhead transmission lines include ACSR (Strong Core Aluminum Strand), STACIR (Super Heat Invasion Aluminum Alloy Strand), ACFR (Aluminum Conductor Fiber Reinforced), ACCC (Aluminum Conductor Composite Core).

상기 ACSR은 아연도금 강선의 강심부와 경알루미늄 소선의 도체부로 구성된 것이고, 상기 STACIR는 아연도금 인바선의 강심부와 초내열 알루미늄합금 소선의 도체부로 구성된 것이며, 상기 ACFR와 ACCC는 복합 소재를 강심부로 구성한 것이다. The ACSR is composed of the core part of the galvanized steel wire and the conductor part of the light aluminum element wire, the STACIR is composed of the core part of the galvanized steel Inbar wire and the conductor part of the superheat-resistant aluminum alloy wire, and the ACFR and ACCC are the core parts of the composite material. It is made up.

그러나 상기한 종래의 가공송전선은 제조 단가가 높아 실제로 적용하기에는 매우 비효율적인 문제점이 있다. 그리고 별도의 특수한 기구를 사용하여 시공해야 하므로 시공성도 떨어지는 문제점이 있다. 또한 유지보수 관리가 용이하지 못하고 신뢰성도 떨어지는 문제점도 있다. However, the conventional overhead transmission line has a high manufacturing cost, which is very inefficient to apply. In addition, there is a problem in that the construction is also poor because the construction must be carried out using a separate special mechanism. In addition, there is a problem that maintenance is not easy and reliability is low.

이에 따라 현재 국내외에서 개발된 상기한 종래의 가공송전선이 가진 문제점들을 일거에 해소할 수 있는 새로운 구조의 가공송전선에 대한 연구가 활발하게 진행되고 있다. Accordingly, the research on the overhead transmission line of a new structure that can solve the problems of the conventional overhead transmission line developed at home and abroad at one time is actively being conducted.

그리하여 도체부를 구성하는 원통 형상의 알루미늄합금선을 사다리꼴로 제조함으로써 도체부의 점적율을 높여 송전용량을 증대시키고자 하는 기술이 제안되었다. Thus, a technique has been proposed to increase the transmission capacity by increasing the spot ratio of the conductor part by manufacturing a cylindrical aluminum alloy wire constituting the conductor part in a trapezoidal shape.

상기한 사다리꼴 알루미늄합금선은 ACCC(Aluminum Conductor Composite Core), ACFR(Aluminum Conductor Fiber Reinforced) 등의 가공송전선에 적용되고 있는데, 이는 신선에 의한 제조방법과 롤링법에 의한 제조방법으로 제조하고 있다. The trapezoidal aluminum alloy wire is applied to overhead transmission lines such as an aluminum conductor composite core (ACCC) and aluminum conductor fiber reinforced (ACFR), which are manufactured by a wire drawing method and a rolling method.

상기 신선(wire drawing)에 의한 제조방법은 9.5㎜의 알루미늄합금로드를 다이스의 7.9㎜, 6.0㎜ 등의 사다리꼴 구멍을 통해 신선하여 제조하는 것으로, 사다리꼴형을 유지하기 어려울 뿐만 아니라 신선 과정에서 단선이 쉽게 발생하고 신선 과정 후에는 열처리와 같은 후처리 공정이 추가로 실시하여 도전율과 인장강도를 조절해야 하는 불편함이 있는 문제점이 있다. The drawing method by wire drawing is manufactured by drawing a 9.5 mm aluminum alloy rod through a trapezoidal hole, such as 7.9 mm, 6.0 mm, of a die, and it is difficult to maintain the trapezoidal shape as well as disconnection in the drawing process. Easily occurs and after the drawing process, there is a problem in that the post-treatment process such as heat treatment is additionally performed to control the conductivity and the tensile strength.

상기 롤링법에 의한 제조방법은 원형의 알루미늄합금로드를 사다리꼴 형상의 롤러에 통과시켜 압연 가공하는 것으로, 정확한 사다리꼴로 제조하기가 쉽지 않은 문제점이 있다. The manufacturing method by the rolling method is a rolling process by passing a circular aluminum alloy rod through a trapezoidal roller, there is a problem that it is not easy to manufacture a precise trapezoid.

따라서 사다리꼴 알루미늄합금선을 별도의 후처리 공정 추가 없이 용이하게 제조하여 그 사용 범위를 확대시킬 수 있도록 가공송전선의 송전용량을 효과적으로 증대시킬 수 있는 제조방법에 대한 연구가 절실하다.
Therefore, there is an urgent need for a research method for manufacturing a trapezoidal aluminum alloy wire that can effectively increase the transmission capacity of the overhead transmission line so as to easily manufacture the trapezoidal aluminum alloy line without adding an additional post-treatment process.

본 발명은 상기한 문제점을 해소하기 위해 발명된 것으로서, 종래의 제조방법과 달리 후처리 공정 없이 적절한 도전율과 인장강도를 갖는 사다리꼴 알루미늄합금선을 연속 제조할 수 있는 가공송전선용 사다리꼴 알루미늄합금선 제조방법 및 그 제조장치을 제공하는데 그 목적이 있다.
The present invention has been invented to solve the above problems, and unlike the conventional manufacturing method, a method for manufacturing a trapezoidal aluminum alloy wire for overhead transmission line that can continuously manufacture a trapezoidal aluminum alloy wire having an appropriate conductivity and tensile strength without a post-treatment process. And its manufacturing apparatus.

상기 목적을 달성하기 위한 본 발명에 따른 가공송전선용 사다리꼴 알루미늄합금선 제조방법은, 9.5~12.5mm의 직경을 갖는 알루미늄합금로드를 직선으로 공급하는 공급단계; 상기 알루미늄합금로드를 300℃의 온도로 예열하는 예열단계; 상기 알루미늄합금로드를 컨폼 압출하여 사다리꼴 알루미늄합금선으로 가공하는 컨폼압출단계; 상기 사다리꼴 알루미늄합금선을 상온으로 냉각하는 냉각단계; 및 상기 사다리꼴 알루미늄합금선을 권취하는 권취단계;가 연속적으로 이루어지도록 구성됨을 특징으로 한다. Method for producing a trapezoidal aluminum alloy wire for overhead power transmission line according to the present invention for achieving the above object, the supply step of supplying a straight aluminum alloy rod having a diameter of 9.5 ~ 12.5mm; A preheating step of preheating the aluminum alloy rod to a temperature of 300 ° C .; A conform extrusion step of conformally extruding the aluminum alloy rod to form a trapezoidal aluminum alloy wire; Cooling step of cooling the trapezoidal aluminum alloy wire to room temperature; And a winding-up step of winding up the trapezoidal aluminum alloy wire.

상기 컨폼압출단계와 상기 냉각단계의 사이에는, 상기 사다리꼴 알루미늄합금선을 3차원 치수측정기를 통해 치수 변화를 측정하여 불량 유무를 판별하는 치수측정단계를 더 포함하여 구성됨을 특징으로 한다. Between the conformal extrusion step and the cooling step, characterized in that it further comprises a dimensional measurement step of determining the defect by measuring the dimensional change of the trapezoidal aluminum alloy wire through a three-dimensional dimension measuring machine.

상기 알루미늄합금로드는, 전기용 경화알루미늄, 전기용 연화알루미늄, 내열 알루미늄, 도전율 58%IACS급 TAI(Thermal-resistant Aluminum-alloy), 도전율이 60%IACS인 STAl(Super Thermal-resistant Aluminum-alloy) 중의 하나로 구성되거나 둘 이상의 조합으로 구성됨을 특징으로 한다. The aluminum alloy rod, electrical cured aluminum, electrical soft aluminum, heat-resistant aluminum, electrical conductivity 58% IACS grade TAI (Thermal-resistant Aluminum-alloy), 60% IACS conductivity (Super Thermal-resistant Aluminum-alloy) It is characterized by consisting of one or a combination of two or more.

또한, 본 발명에 따른 가공송전선용 사다리꼴 알루미늄합금선 제조장치는, 보빈에 감긴 알루미늄합금로드를 직선으로 풀어 공급하는 언코일러; 상기 알루미늄합금로드를 예열하는 인덕션 히터; 상기 알루미늄합금로드를 컨폼 압출하여 사다리꼴 알루미늄합금선으로 가공하는 컨폼 압출기; 상기 사다리꼴 알루미늄합금선의 치수 변화를 3차원으로 측정하는 3차원 치수 측정기; 상기 사다리꼴형 알리미늄합금선을 냉각하는 냉각기; 및 상기 사다리꼴 알루미늄합금선을 보빈에 권취하는 권취기;를 포함하여 구성됨을 특징으로 한다.
In addition, the apparatus for manufacturing a trapezoidal aluminum alloy wire for overhead power transmission line according to the present invention, the uncoiler to unwind and supply the aluminum alloy rod wound on the bobbin in a straight line; An induction heater for preheating the aluminum alloy rod; A conform extruder for conformally extruding the aluminum alloy rod to form a trapezoidal aluminum alloy wire; A three-dimensional dimension measuring device for measuring a dimension change of the trapezoidal aluminum alloy wire in three dimensions; A cooler for cooling the trapezoidal aluminum alloy wire; And a winder for winding the trapezoidal aluminum alloy wire to the bobbin.

상기한 구성에 의한 본 발명은, 도체부의 점적율을 높이고 가공송전선의 직경을 최소화할 수 있는 사다리꼴 알루미늄합금선을 컨폼 압출 방식을 통하여 용이하게 제조할 수 있는 효과가 있다. 그리고 상기 컨폼 압출 방식을 통해 사다리꼴 알루미늄합금선의 연속 제조가 가능하여 대량 생산할 수 있는 효과가 있다. 또한 사다리꼴 알루미늄합금선의 대량 생산을 통해 이에 대한 보급을 더욱 확대시켜 가공송전선의 송전용량 증대에 크게 기여할 수 있는 효과가 있다.
According to the present invention, the trapezoidal aluminum alloy wire which can increase the spot ratio of the conductor part and minimize the diameter of the overhead transmission line can be easily manufactured through the conformal extrusion method. And through the conformal extrusion method it is possible to continuously manufacture the trapezoidal aluminum alloy wire, there is an effect that can be mass-produced. In addition, through the mass production of trapezoidal aluminum alloy wire to further expand the distribution there is an effect that can greatly contribute to the transmission capacity of the overhead transmission line.

도 1은 본 발명의 제조방법을 도시한 순서도
도 2는 본 발명의 제조장치를 계략적으로 도시한 구성도.
도 3은 본 발명에 의해 제조된 사다리꼴 알루미늄합금선의 예시도.
도 4는 본 발명에 의해 제조된 사다리꼴 알루미늄합금선을 적용한 가공송전선의 예시도
1 is a flow chart showing a manufacturing method of the present invention
2 is a configuration diagram schematically showing a manufacturing apparatus of the present invention.
Figure 3 is an illustration of a trapezoidal aluminum alloy wire produced by the present invention.
Figure 4 is an illustration of the overhead transmission line applying the trapezoidal aluminum alloy wire produced by the present invention

본 발명은 가공송전선용 사다리꼴 알루미늄합금선 제조방법 및 그 제조장치는 도체부의 점적율을 높여 송전용량을 증대시키고자 도체부를 구성하는 원통 형상의 알루미늄합금선을 사다리꼴 형상으로 제조하기 위한 것이다. The present invention is a method for manufacturing a trapezoidal aluminum alloy wire for overhead transmission line and its manufacturing apparatus for manufacturing a cylindrical aluminum alloy wire constituting the conductor portion in a trapezoidal shape to increase the capacity ratio of the conductor portion to increase the transmission capacity.

특히, 본 발명에 따른 가공송전선용 사다리꼴 알루미늄합금선 제조방법 및 그 제조장치는, 별도의 후처리 공정 등을 실시하지 않고 적절한 도전율과 인장강도를 갖는 사다리꼴 알루미늄합금선을 연속적으로 제조할 수 있는 것을 특징으로 한다. In particular, the method and apparatus for manufacturing a trapezoidal aluminum alloy wire for overhead power transmission lines according to the present invention can continuously produce a trapezoidal aluminum alloy wire having an appropriate conductivity and tensile strength without performing a separate post-treatment process or the like. It features.

이러한 특징은, 알루미늄합금로드를 공급하는 단계, 알루미늄합금로드를 예열하는 단계, 알루미늄합금로드를 컨폼(conform) 압출하여 사다리꼴 알루미늄합금선으로 가공하는 단계, 사다리꼴 알루미늄합금선을 냉각하는 단계, 및 사다리꼴 알루미늄합금선을 권취하는 단계로 이루어진 제조방법 및 그 제조장치에 의해 달성된다. These features include supplying aluminum alloy rods, preheating the aluminum alloy rods, conforming extruded aluminum alloy rods to process them into trapezoidal aluminum alloy wires, cooling the trapezoidal aluminum alloy wires, and trapezoidal It is achieved by a manufacturing method and a manufacturing apparatus comprising the step of winding an aluminum alloy wire.

즉, 소재인 알루미늄합금로드를 별도의 후처리 단계 없이 상기한 일련의 단계를 통해 적절한 도전율과 인장강도를 갖는 사다리꼴 알루미늄합금선을 연속적으로 제조할 수 있는 제조방법 및 제조장치에 의한 것이다. In other words, the aluminum alloy rod is a manufacturing method and apparatus capable of continuously manufacturing a trapezoidal aluminum alloy wire having an appropriate conductivity and tensile strength through the above series of steps without a separate post-treatment step.

따라서 가공송전선의 점적율을 높이고 그 진경을 최소화할 수 있는 사다리꼴 알루미늄합금선을 용이하게 대량 생산할 수 있다.
Therefore, it is possible to easily mass-produce a trapezoidal aluminum alloy wire that can increase the spot ratio of the overhead transmission line and minimize its rigidity.

이하 본 발명의 바람직한 실시예를 첨부한 도면을 참조하여 상세하게 설명하면 다음과 같다. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 제조방법을 도시한 순서도이고, 도 2는 본 발명의 제조장치를 계략적으로 도시한 구성도이며, 도 3은 본 발명에 의해 제조된 사다리꼴 알루미늄합금선의 예시도이고, 도 4는 본 발명에 의해 제조된 사다리꼴 알루미늄합금선을 적용한 가공송전선의 예시도이다. 1 is a flow chart showing a manufacturing method of the present invention, Figure 2 is a schematic view showing a manufacturing apparatus of the present invention, Figure 3 is an illustration of a trapezoidal aluminum alloy wire produced by the present invention, Figure 4 is an exemplary diagram of a overhead transmission line to which the trapezoidal aluminum alloy wire manufactured according to the present invention is applied.

본 발명의 바람직한 실시예에 따른 가공송전선용 사다리꼴 알루미늄합금선 제조방법은, 도 1에 도시된 바와 같이 공급단계(S110), 예열단계(S120), 컨폼압출단계(S130), 냉각단계(S150), 및 권취단계(S160)를 포함하여 구성된다. Trapezoidal aluminum alloy wire manufacturing method for a overhead transmission line according to a preferred embodiment of the present invention, the supply step (S110), preheating step (S120), conform extrusion step (S130), cooling step (S150) as shown in FIG. , And winding step (S160) is configured.

그리고 본 발명의 바람직한 실시예에 따른 가공송전선용 사다리꼴 알루미늄합금선 제조장치는, 언코일러(10), 인덕션 히터(20), 컨폼 압출기(30), 3차원 치수 측정기(40), 냉각기(50), 및 권취기(60);를 포함하여 구성된다. And the trapezoidal aluminum alloy wire manufacturing apparatus for overhead power lines according to a preferred embodiment of the present invention, the uncoiler 10, the induction heater 20, conform extruder 30, three-dimensional dimension measuring device 40, cooler 50 , And a winding machine 60; is configured to include.

즉, 상기 제조장치를 사용하는 상기 제조방법을 통해 원형 단면의 알루미늄합금로드(R)를 사다리꼴 알루미늄합금선(TW)으로 가공 제조하는 것으로, 상기 제조방법을 구성하는 각각의 단계들을 차례대로 상세하게 설명하면 다음과 같다.
That is, by manufacturing the aluminum alloy rod (R) of the circular cross-section through the trapezoidal aluminum alloy wire (TW) through the manufacturing method using the manufacturing apparatus, each step constituting the manufacturing method in detail The explanation is as follows.

먼저, 상기 공급단계(S110)는, 도 2에 도시된 바와 같이 보빈에 권취되어 있는 알루미늄합금로드(R)를 언코일러(10)를 통해 직선으로 공급하는 단계이다. First, the supply step (S110) is a step of supplying the aluminum alloy rod (R) wound on the bobbin in a straight line through the uncoiler 10, as shown in FIG.

이때 알루미늄합금로드(R)는 연속 주조 방식으로 제조된 것으로, 이는 9.5~12.5mm의 직경을 가지고 단면 형성이 원형으로 이루어진 것이다. At this time, the aluminum alloy rod (R) is produced by a continuous casting method, which has a diameter of 9.5 ~ 12.5mm and the cross-section is formed in a circular shape.

그리고 알루미늄합금로드(R)는 전기용 경화알루미늄, 전기용 연화알루미늄, 내열 알루미늄, 도전율 58%IACS급 TAI(Thermal-resistant Aluminum-alloy), 도전율이 60%IACS인 STAl(Super Thermal-resistant Aluminum-alloy) 중의 하나로 구성되거나 둘 이상의 조합으로 구성되는 것이 바람직하다.
The aluminum alloy rod (R) is hardened aluminum for electrical, soft aluminum for aluminum, heat-resistant aluminum, 58% IACS grade Thermal-resistant Aluminum-alloy (TAI), and STAl (Super Thermal-resistant Aluminum-) with 60% IACS conductivity. It is preferred to be composed of one of the alloys or a combination of two or more.

다음으로, 상기 예열단계(S120)는, 도 2에 도시된 바와 같이 상기 공급단계(S110)에서 직선으로 공급된 원형 단면의 알루미늄합금로드(R)를 인덕션 히터(20)를 통해 예열하는 단계이다.Next, the preheating step (S120) is a step of preheating the aluminum alloy rod (R) of the circular cross-section supplied in a straight line in the supply step (S110) as shown in Figure 2 through the induction heater (20). .

즉, 상기 예열단계(S120)는 원형 단면의 알루미늄합금로드(R)를 일정 온도로 예열함으로써 이후의 컨폼압출단계(S130)에서 컨폼 압출 가공에 의해 형상 변형이 용이하게 이루어질 수 있도록 하는 단계이다.That is, the preheating step (S120) is a step for preforming the aluminum alloy rod (R) having a circular cross section at a predetermined temperature so that the shape deformation can be easily performed by the conformal extrusion in the subsequent conform extrusion step (S130).

이때 인덕션 히터(20)의 예열 온도는 알루미늄합금로드(R)의 물성을 변화시키지 않으면서 컨폼 압출 가공이 원활하게 이루어지는 300℃의 온도로 설정하는 것이 바람직하다.
At this time, it is preferable to set the preheating temperature of the induction heater 20 to a temperature of 300 ° C. in which conformal extrusion is performed smoothly without changing the physical properties of the aluminum alloy rod R.

다음으로, 상기 컨폼압출단계(S130)는, 도 2에 도시된 바와 같이 상기 예열단계(S120)에서 예열된 원형 단면의 알루미늄합금로드(R)를 컨폼 압출기(30)를 통해 컨폼 압출하여 사다리꼴 알루미늄합금선(TW)으로 가공하는 단계이다. Next, the conform extrusion step (S130), as shown in Figure 2 by the conformal extrusion of the aluminum alloy rod (R) of the circular cross section preheated in the preheating step (S120) through the conform extruder 30 to trapezoidal aluminum It is a step of processing into an alloy wire (TW).

즉, 상기 컨폼압출단계(S130)는 원형 단면의 알루미늄합금로드(R)를 일정한 압력과 속도로 사다리꼴형을 가진 컨폼 압출기(30)의 다이스에 투입 통과시킴으로써 원형 단면을 사다리꼴형 단면으로 형상 변형시키는 것으로서, 본 발명의 가장 핵심적인 단계이다. That is, the conform extrusion step (S130) is to deform the circular cross section into a trapezoidal cross section by passing the aluminum alloy rod (R) of the circular cross section through a die of the conform extruder 30 having a trapezoidal shape at a constant pressure and speed. As such, this is the most essential step of the present invention.

따라서 상기 컨폼압출단계(S130)를 통해 원형 단면의 알루미늄합금로드(R)는 가공송전선 적용시 점적율을 약 95%까지 높여 송전용량을 증대시키는 도 3의 사다리꼴 알루미늄합금선(TW)으로 가공된다.
Therefore, the aluminum alloy rod (R) of the circular cross section through the conformal extrusion step (S130) is processed into a trapezoidal aluminum alloy wire (TW) of Figure 3 to increase the transmission capacity by increasing the area ratio to about 95% when the overhead transmission line is applied. .

다음으로, 상기 냉각단계(S150)는, 도 2에 도시된 바와 같이 상기 컨폼압출단계(S130)에서 가공된 사다리꼴 알루미늄합금선(TW)을 냉각기(40)를 통해 냉각하는 단계이다. Next, the cooling step (S150) is a step of cooling the trapezoidal aluminum alloy wire (TW) processed in the conformal extrusion step (S130) through the cooler 40, as shown in FIG.

즉, 상기 냉각단계(S150)는 예열 상태에 있는 사다리꼴 알루미늄합금선(TW)을 보통 15℃를 가리키는 상온으로 냉각함으로써 63%IACS의 도전율과 7.0㎏f/㎟의 인장강도를 갖도록 하는 단계이다.
That is, the cooling step (S150) is a step of cooling the trapezoidal aluminum alloy wire (TW) in the preheated state to a normal temperature, which usually indicates 15 ° C, to have a conductivity of 63% IACS and a tensile strength of 7.0 kgf / mm 2.

다음으로, 상기 권취단계(S160)는, 도 2에 도시된 바와 같이 상기 냉각단계(S150)에서 냉각된 사다리꼴 알루미늄합금선(TW)을 권취기(60)를 통해 권취하는 단계이다. Next, the winding step (S160), as shown in Figure 2 is a step of winding the trapezoidal aluminum alloy wire (TW) cooled in the cooling step (S150) through the winding machine (60).

즉, 상기 권취단계(S160)는 냉각기(40)을 통해 직선으로 공급되는 사다리꼴 알루미늄합금선(TW)을 보빈에 권취함으로써 사다리꼴 알루미늄합금선(TW)의 운반 및 보관을 가능하게 하는 단계이다.
That is, the winding step (S160) is a step to enable the transport and storage of the trapezoidal aluminum alloy wire (TW) by winding the trapezoidal aluminum alloy wire (TW) supplied in a straight line through the cooler 40 to the bobbin.

여기서 본 발명은 상기 컨폼압출단계(S130)와 상기 냉각단계(S150)의 사이에 치수측정단계(S140)를 더 추가하여 구성할 수 있다. Here, the present invention may be configured by further adding a dimension measurement step (S140) between the conform extrusion step (S130) and the cooling step (S150).

상기 치수측정단계(S140)는 도 2에 도시된 바와 같이 상기 컨폼압출단계(S130)에서 가공된 사다리꼴 알루미늄합금선(TW)의 치수 변화를 3차원 치수측정기(40)를 통해 자동으로 측정하는 단계이다. The dimension measuring step (S140) is a step of automatically measuring the dimensional change of the trapezoidal aluminum alloy wire (TW) processed in the conformal extrusion step (S130) as shown in Figure 2 through the three-dimensional dimension measuring machine 40 to be.

즉, 상기 3차원 치수측정기(40)에 의해 측정된 사다리꼴 알루미늄합금선(TW)의 공칭 직경 등의 치수 변화 정보를 통해 불량 유무를 판별함으로써 컨폼 압출기(30)의 압출 압력과 속도 등을 재설정하여 불량을 방지하기 위한 단계이다.
That is, the extrusion pressure and speed of the conform extruder 30 are reset by determining whether there is a defect through dimensional change information such as a nominal diameter of the trapezoidal aluminum alloy wire (TW) measured by the three-dimensional dimension measuring device 40. This step is to prevent defects.

상기와 같은 제조방법으로 제조한 사다리꼴 알루미늄합금선(TW)이 적용된 도 4의 가공송전선(100)을 ACSR(강심 알루미늄 연선), HSTACIR(고강도 초내열 인바심 알루미늄 합금 연선)과의 물성 비교를 보면 아래의 표 1과 같다.
Comparing the physical properties of the overhead power transmission line 100 of FIG. 4 to which the trapezoidal aluminum alloy wire (TW) manufactured by the above-described manufacturing method is compared with the ACSR (high-strength aluminum stranded wire) and HSTACIR Table 1 below.

가공송전선의 종류Type of Overhead Transmission Line 점적율[%]Dripping rate [%] DC저항[Ω]DC resistance [Ω] 허용전류[A]Allowable current [A] 본 발명에 의한
가공송전선
According to the present invention
Overhead power line
9595 0.06600.0660 1,7211,721
ACSRACSR 7575 0.06860.0686 847847 HSTACIRHSTACIR 7575 0.07020.0702 1,5371,537

즉, 본 발명이 적용된 가공송전선(100)은 ACSR, HSTACIR에 비하여 점적율이 높고 DC저항이 낮고 허용전류(200℃ 기준)가 높은 것을 알 수 있다. In other words, it can be seen that the overhead transmission line 100 to which the present invention is applied has a higher spot ratio, a lower DC resistance, and a higher allowable current (based on 200 ° C) than ACSR and HSTACIR.

단, 본 발명이 적용된 가공송전선(100)은 도체부(120)가 되는 사다리꼴 알루미늄합금선(TW)이 강심부(110)가 되는 지지선의 외측에 나선형으로 감기되, 복수 개의 층을 이루되 각 층마다 반대방향으로 감겨 설치된 구조이다.
However, in the overhead transmission line 100 to which the present invention is applied, the trapezoidal aluminum alloy wire (TW), which becomes the conductor portion 120, is wound spirally on the outer side of the support line, which becomes the core portion 110, and forms a plurality of layers. Each floor is wound in the opposite direction.

이상과 같이 본 발명은, 연속적으로 이루어지는 컨폼압출 방식을 통해 사다리꼴 알루미늄합금선을 용이하게 대량 생산함으로써 이에 대한 보급을 더욱 확대하여 가공송전선의 송전용량 증대에 크게 기여할 수 있다. As described above, the present invention can easily contribute to the increase in the transmission capacity of the overhead transmission line by further expanding the distribution by easily producing a trapezoidal aluminum alloy wire through the continuous conformal extrusion method.

상기한 실시예는 예시적인 것에 불과한 것으로, 당해 기술분야에 대한 통상의 지식을 가진 자라면 이로부터 다양하게 변형된 다른 실시예가 가능하다. The above-described embodiments are merely illustrative, and various modifications may be made by those skilled in the art without departing from the scope of the present invention.

따라서 본 발명의 진정한 기술적 보호범위에는 하기의 특허청구범위에 기재된 발명의 기술적 사상에 의해 상기의 실시예 뿐만 아니라 다양하게 변형된 다른 실시예가 포함되어야 한다.
Therefore, the true technical protection scope of the present invention should include not only the above embodiment but also various other embodiments modified by the technical spirit of the invention described in the claims below.

10: 언코일러 20: 인덕션 히터
30: 컨폼 압출기 40: 3차원 치수측정기
50: 냉각기 60: 권취기
S110: 공급단계 S120: 예열단계
S130: 컨폼압출단계 S140: 치수측정단계
S150: 냉각단계 S160: 권취단계
R: 알루미늄합금로드 TW: 사다리꼴 알루미늄합금선
100: 가공송전선
110: 강심부 120: 도체부
10: uncoiler 20: induction heater
30: conform extruder 40: three-dimensional measuring machine
50: cooler 60: winder
S110: supply step S120: preheat step
S130: conform extrusion step S140: dimension measurement step
S150: cooling step S160: winding step
R: Aluminum Alloy Rod TW: Trapezoidal Aluminum Alloy Wire
100: overhead transmission line
110: strong core 120: conductor

Claims (4)

9.5~12.5mm의 직경을 갖는 알루미늄합금로드(R)를 직선으로 공급하는 공급단계(S110);
상기 알루미늄합금로드(R)를 300℃의 온도로 예열하는 예열단계(S120);
상기 알루미늄합금로드(R)를 컨폼 압출하여 사다리꼴 알루미늄합금선(TW)으로 가공하는 컨폼압출단계(S130);
상기 사다리꼴 알루미늄합금선(TW)을 상온으로 냉각하는 냉각단계(S150); 및
상기 사다리꼴 알루미늄합금선(TW)을 권취하는 권취단계(S160);가 연속적으로 이루어지도록 구성됨을 특징으로 하는 가공송전선용 사다리꼴 알루미늄합금선 제조방법.
Supply step (S110) for supplying a linear aluminum alloy rod (R) having a diameter of 9.5 ~ 12.5mm in a straight line;
Preheating step (S120) of preheating the aluminum alloy rod (R) to a temperature of 300 ℃;
Conform extrusion step of processing the aluminum alloy rod (R) by conformal extrusion into a trapezoidal aluminum alloy wire (TW) (S130);
Cooling step (S150) for cooling the trapezoidal aluminum alloy wire (TW) to room temperature; And
Winding step (S160) for winding the trapezoidal aluminum alloy wire (TW); Trapezoidal aluminum alloy wire manufacturing method for a overhead transmission line, characterized in that the configuration is made to be continuous.
제1항에 있어서,
상기 컨폼압출단계(S130)와 상기 냉각단계(S150)의 사이에는,
상기 사다리꼴 알루미늄합금선(TW)을 3차원 치수측정기(50)를 통해 치수 변화를 측정하여 불량 유무를 판별하는 치수측정단계(S140)를 더 포함하여 구성됨을 특징으로 하는 가공송전선용 사다리꼴 알루미늄합금선 제조방법.
The method of claim 1,
Between the conform extrusion step (S130) and the cooling step (S150),
The trapezoidal aluminum alloy wire for the overhead transmission line, characterized in that the trapezoidal aluminum alloy wire (TW) further comprises a dimensional measurement step (S140) of measuring the dimensional change through the three-dimensional dimension measuring device 50 to determine the presence or absence of defects. Manufacturing method.
제1항 또는 제2항에 있어서,
상기 알루미늄합금로드(R)는,
전기용 경화알루미늄, 전기용 연화알루미늄, 내열 알루미늄, 도전율 58%IACS급 TAI(Thermal-resistant Aluminum-alloy), 도전율이 60%IACS인 STAl(Super Thermal-resistant Aluminum-alloy) 중의 하나로 구성되거나 둘 이상의 조합으로 구성됨을 특징으로 하는 가공송전선용 사다리꼴 알루미늄합금선 제조방법.
3. The method according to claim 1 or 2,
The aluminum alloy rod (R),
Electrically hardened aluminum, electrically softened aluminum, heat-resistant aluminum, one of 58% IACS grade Thermal-resistant Aluminum-alloy (TAI), 60% IACS Super Thermal-resistant Aluminum-alloy (STAl) or more than one Trapezoidal aluminum alloy wire manufacturing method for a overhead transmission line, characterized in that consisting of a combination.
보빈에 감긴 알루미늄합금로드(R)를 직선으로 풀어 공급하는 언코일러(10);
상기 알루미늄합금로드(R)를 예열하는 인덕션 히터(20);
상기 알루미늄합금로드(R)를 컨폼 압출하여 사다리꼴 알루미늄합금선(TW)으로 가공하는 컨폼 압출기(30);
상기 사다리꼴 알루미늄합금선(TW)의 치수 변화를 3차원으로 측정하는 3차원 치수 측정기(40);
상기 사다리꼴형 알리미늄합금선(TW)을 냉각하는 냉각기(50); 및
상기 사다리꼴 알루미늄합금선(TW)을 보빈에 권취하는 권취기(60);를 포함하여 구성됨을 특징으로 하는 가공송전선용 사다리꼴 알루미늄합금선 제조장치.
An uncoiler 10 which unwinds and supplies the aluminum alloy rod R wound around the bobbin in a straight line;
An induction heater 20 for preheating the aluminum alloy rod R;
A conform extruder (30) for conformally extruding the aluminum alloy rod (R) to form a trapezoidal aluminum alloy wire (TW);
A three-dimensional dimension measuring device 40 for measuring a three-dimensional change in size of the trapezoidal aluminum alloy wire (TW);
Cooler 50 for cooling the trapezoidal aluminum alloy wire (TW); And
Trapezoidal aluminum alloy wire manufacturing apparatus for a overhead transmission line, characterized in that comprises a; winding machine (60) for winding the trapezoidal aluminum alloy wire (TW) to the bobbin.
KR1020120129578A 2012-11-15 2012-11-15 Manufacturing method and apparatus of trapezoidal aluminumalloy wire for overhead power transmission cable KR101351239B1 (en)

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KR101754341B1 (en) * 2015-11-05 2017-07-10 (주)메탈링크 Overhead electric wires, high strength corrosion resistant steel wires used thereto, and methods for manufacturing the same
KR101864774B1 (en) * 2016-04-20 2018-07-05 (주)메탈링크 Overhead electric wires, high conductive aluminum alloy wires used thereto, and methods for manufacturing the same
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